Electrical controlling means for winding-machines.



(Applicatinn led Sept. 20, 1900.)

(N0 Model.)

n. vAnLEv, 1n., ELECTRICAL CONTRULLING MEANS FOR WINDING MACHINES.

No. 679,924. Patented Aug. s, 190|. R.l vAnLEY, 1n. ELECTFHCAL CNTRLLING'MEANS FUR WINDING MACHINES.

(Application led Sept. 20, 1900.)

7 Sheets-Sheet 2.

'P`atented.Aug; 6, 190|. R. VARLEY, IB. ELECTRICAL CDNTROLLING MEANS FOR WINDI'NG MACHINES.

(Application led Sept, 20, 1900.)

1 Sheets-Shut 3.

(No Model.)

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No. 679,924. Patented Aug. 6, I90I.

n. vALEY, 1n. ELECTRICAL CONTROLLERS MEANS FCR WINDINE MACHINES.

(Applimion :ned sept. 2o, woo.) Y (No Model.) 7 Sheets-Sheet 4.

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No. 679,924. Patented Aug. s, |901. n. vAnLEY, 1n. ELECTRICAL CONTROLLING MEANS FUR WINDING MACHINES.

(Application mea sept. 20.1900.)

(No Model.)

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1H: mms mins co., mvoufno.. Wigman. n, c.

No. 679,924. Patented Aug. 6, 190|.

n. vARLEY, 1n. ELECTRICAL CUNTBDLLING MEANS FUR WINDING MACHINES;

(Application filelept. 20, 1900.) (Mandel.) 7 sheets-sheet s.

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no. 579,924.l 4 Patented` Aug. s, mol. R. YARLEY, 1n. ELECTRICAL GBNTRLLIKG MEANS `FR WINDING MACHINES.

(Application mea sepa 2o, 1900. (No Model.) 7 Sheets-Sheet 7 m: cams mens w. morro-uma.. wAsHwsYon. n. c.

man' STAT-Esi 'Paf-TENT ENCE.

BICI-IARD VARLELJR., orJERsEY CITY, NEW JERSEY.

ELECTRICAL CONTROLLING IVIENS FOR WINDING-NIACHINES.

SPECIFICATION forming part of Letters Patent No. 679,924, dated y.August 6, '1901.

Application filed September 20, 1900. Serial No. 30,559. (No model.)

To all whom it may concern:

Be it known that I, RICHARD VARLEY, Jr., a citizen of the United States, residing in Jersey City, in the Acounty of Hudson and State of New Jersey, have invented certain new and useful Improvements in Electrical Controlling Means for finding-Machines, of which the following is a specification.

This invention relates to electrical controlling means for use especially in connection with Winding mechanism; and it has for its main object a controlling system for a machine for winding strip metal or Wire into coils and determining the resistance of the coils so Wound. This improved controlling systemjis especially adapted for use in connection with a machine for winding a Inetallic conductor or Wire to form an electromagnet or helix, particularly when the machine is designed to Wind a plurality of such electromagnets or helices simultaneously. In machines of this kind heretofore employed it has been customary to Wind a given length of Wire upon a holder to obtain adesired amount of resistance and afterward to test the magnet so Wound to determine exactly what resistance is in circuit,A it being customary to Winda greater amount thanis necessary and afterward to cut off the Wire representing the su rplus resistance.

One of the principal objects of the present invention is to provide in connection with a mechanism for winding coils and forming electromagnetic helices suitable electrical controlling and testing devices for determining exactly the value of the resistance in any given set of coils wound by the machine, and it will be evident that it is only by determining the electrical resistance of the conductor which is Wound to form the helix that the proper point at which to out the wire Without waste can be gaged. When several electromagnets arewound simultaneously by a machine of this kind, it will be evident that a different length of wire may be required for each electromagnet, even though the electrical resistance of each is to be the same. Hence an electrical controlling system for testing and determining the resistance of the coils Wound for each electromagnet should embody means for testing the several helices separately, and when the resistance of any such helix reaches the desired point this fact should be indicated, and preferably the operation of the mechanism controlling the Winding of the magnet or helix should be `stopped instantaneously. To accomplish this result properly, the electrical devices which determine the resistance of any particular conductor being wound should be very sensitive in their doperation, as it is Well known that controlling devices which depend for their proper operation principally upon the movements of mechanically-operated parts, especially when these are of large size, are unsuitable for use in au electrical testing apparatus, for the reason that they are not sensitive enough to respond instantaneously when brought into action. The inertia of parts of considerable size, the resistance of the air to the movements thereof, and various other factors combine to prevent the immediate response of any such-part to the force tending to operate the same, and it is only by making use of a device which has but slight inertia and will oppose but little resistance to the air that a practicallyinstantaneous movement of the part to be 'controlled can be obtained.

The resistance of any circuit is ordinarilyconductor being wound balances the known resistance of the bridge-circuit, and I may also provide in connection with the galvanometer means for indicating when this point is reached in some other manner than by the mere reading of the galvanometer scale, whereupon a suitable device may be brought into action for stopping instantly the winding of the wire and the consequent intercalation of resistance into the circuit of the helix. These results I accomplish by means of au improved controlling device which is `very IOC g evene-1 sensitive in its action and the movements of which are dependent upon variations in the,

electrical quantity measured by a meter or galvanometer included in a circuit to be tested. Such meter or galvanometer ordinarily will form part of a controlling device having a contact or terminal moving in synchronism with the pointer or needle of the meter, and this contact or circuit-controller Will make a circuit, not by engagement With acoperating metallic contact, but by its approach toward a pair of circuit-terminals separated by an air-gap, it being movable to a point Where it. will strain to the point of rupturethe dielectric between it and saidv circuit-terminals, and thus produce a disruptive discharge between such terminals, which discharge will form a conducting path dependent solely upon the electrostatic tension at that point and not in any Way upon mere mechanical contact. This device will usually be embodied in and constitutethe essential feature of a relay which will make and break a local circuit by varying the resistances of the air-gap separating the terminals of such local circuit, and While said device forms an important feature of the controlling syste'm herein described it is not claimed, broadly, herein, but constitutes the subject-matter of a companion application filed by me August 16, 1900, Serial No. 27,031.

` As to this feature of my present application I employ a modification ofthe device shown in said companion application, said device being utilized in the present instance to close a local circuit containing a translating-device when the resistance ofa helix being Wound by the machine reaches a predetermined point, and such a device is also utilized in the present application for automatically stopping the variation of the resistance of a circuit containing a variable resist- 'ance when such variation reaches a predetermined point.

It Will be evident that myimproved machine for Winding the helices of electromagnets embodies means for automatically varying the electrical quantity (in this case the resistance) measured by ameter and that it' contains an electricallycontrolled device which is governedby such variation and is operative when the variation reaches a deter- .mined amount-c'. e.,-When the circuitbeing tested indicates a certain number of units or ohms of the electrical quantity or resistance being measured-said device also serving in this case to stop such variation by stopping the Winding operation when the coils Wound to form any helix contain the proper amount of resistance. Usually the variable resistance of the coils being Wound will be contained in onev arm of an electric bridge, and a galva- .uometer included in the bridge-circuit Wil-l y' devices j ust described will ordinarily be employed for controlling the operation of a machine containing means for coiling and insulating a bare conductor or Wire, a bare Wire and an insulating-thread usually being Wound side by side in parallel coils and a sheet of insulating material lbeing Wrapped around each layer of alternating wire and thread coils when such llayer is completed. For the purpose of laying the Wire and the thread properly suitable traversing mechanism may be employed, that shown in the present case embodying a reciprocatory Wire and thread guide containing a plurality of guide-rolls insulated from one another and by which the wire and the thread will be supported and guided. The

insulating-sheets, of paper or other suitable` material, to be Wrapped around the successive layers of coils mayperfmedfinany suitable manner to th'e'lii'elix being Wound; "bu't'Tprefer to cut sheets of diiferent lengths from a continuous Web of paper fed from a roll, the sheets preferably increasing progressively in length as the diameter of thehelix increases, and the feed mechanism employed in connection With the continuous web should have dierent feeds, preferably increasing progressively step by step as the successive layers of coils are Wound to form the helix.

While my invention may be embodied in an apparatus containing means for varying the resistance of a single circuit and automatically stopping such variation at a predetermined point, yet I prefer to make use of a machine in which a plurality of electric circuits containing variable resistances have such resistances varied simultaneously and the variation stopped at the proper pointthat is to say, in a machine for Winding the helices of electromagnets I Will employ multiple wire-coiling means for winding a plurali-ty of helices or sets of coils simultaneously, and when the resistance of any helix or set of coils being Wound reaches a predetermined amount such variation, and preferably the operation of the Whole machine, will be stopped at once, and thus only the amount of wire needed will be wound in each helix, and this amount will be determined with great certainty regardless of the cross-section of the Wire, the nature of the metal, and the impurities that may be present therein.

Another important feature of my present invention, and one which it will be evident will be embodied in any testing-machine for winding helices in the .manner hereinbefore described, is the employment of a variable resistance and a rolling contact in traveling engagement with each other and included in an electric circuit controlling a translating device responsive to such variable'resistance when the latter reaches a determined point.

Other features of my invention not hereinbefore alluded to willbe fully set forth in the following specification and are clearly shown in the accompanying drawings, in Which-V IOO IIO

IZO

`with parts in section.

Figure llis a side r elevation, with parts broken away, of a machine embodying my present invention and operative for winding electromagnets. Fig. 2 isaplan of the same. Fig. 3 is a front elevation of the same With parts broken away. Fig. 4 is an enlarged side elevation of the principal mechanisms Fig. 5 is a sectional elevation ofthe same with the framing broken away to illustrate the operating parts clearly. Fig. 6 is an enlarged detail illustrating one of the wire-reels and .its holding devices.

Fig. 7 is an enlarged longitudinal section illustrating the coupling and uncoupling mechanism for the main drivingshaft. Fig. 8 is an enlarged longitudinal section of the winding-spindle of the machine. Fig. 9 is a diagrammatic view of an electrical controlling system for governing the operation of the machine. Fig. lO-is an enlarged detail and illustrates the fixed resistance-coils of the Wheatstone bridges looking from the rear of the machine. Figs. 11 and 12 are enlarged details illustrating in side and edge elevation, respectively, a spark-contactcontrolling device for producing a disruptive discharge.

Similar characters `indicate corresponding parts throughout the several views.

For the purpose of illustrating the manner in which electromagnets may be wound and the resistance of the helices accurately determined I have shown herein a sim ple mechanism for winding a plurality of helices simultaneously and for properly insulating the wires as they are Wound. In this construction the necessary power for operating the sev-` eral parts of the mechanism is obtained from` a line-.shaft 2, suitablyjournaled in bearings` and carrying a band-Wheel 3, from which movement is transmitted to a driving-shaft 5 by .means of a belt 4 passing around a band-wheel 6, secured to said driving-shaft..

This wheel 6 constitutes the 4fast pulley of a coupling device, the loose pulley of which is` illustrated herein at 7 (see Fig. 7) and is secured to a sleeve 8, having a long bearing upon the shaft 5, a friction-ring 9 being interposed in this case between suchfast and loose pulleys.

For the purpose of uncoupling the loose pulley automatically I prefer to mount on the hub of the pulley 7 a helical spring l0, which bears, at one end against the inner side of the wheel-web and at its other end against a collar l2, keyed to the shaft 5. At theopposite end thereof the sleeve 8 may have a tapered or conical portion 8', movable in a correspondingly-tapered socket 14 in a xed member or bearing-hanger 14, the journaled instantaneously, the spring l0, together with` these parts, constituting in the present case a combined uncoupling device and brake for stopping the operation of the mechanism. The coupling of these part-s may be effected in any suitable manner, as by means of a coupling-lever 15, pivoted at a ixed point, `such as 15', onthe framework and having an adjustable pin 15/l centered at the end of the sleeve'8, said lever being held in its coupling position in this case by means of a coupling pin 15" working in a slot 16' in a latch 16 on the framework, this latch being releasable in a manner which will be hereinafter described.

Any suitable framework may be employed for supporting the several operative parts of the machine, the principal member of the framework being in this case a fiat table or bed A, mounted on legs in the usual manner and having rising from the rear end thereof a pair ot' overhanging arms B, connected by cross-bars, such as 20, 21, and 22, these crossbars forming in the present case supports for the wire-supplying means controlling the feeding of wire to the wire-ceiling mechanism. In the constructionillustrated I have shown six sets of supply devices, each set comprising, preferably, two holders or reels,

those of the upper row being thread-reels (designated, respectively, by 30, 32, 34, 36, 38, and 40) and those of the lower row being wire-reels, (designated, respectively, by 31, 33, 35, 57, 39, and 41.) These reels are preferably supported in the manner shown herein, the pivots 45 and 4b" being fixed ones, while pivots 45 and t6 are carried by swinging arms, such as -17 and 48, held in place by springs, such as 4:9 and 50, which, it will be obvious, permit the reels to be inserted and removedreadily. be insulated, and this may be accomplished in the` manner shownin detail in Fig. 6, in which the pivot 45 has alayer 45 of insulating material interposed between the main portion of the pivot and the outer metallic bearing-surface 4.5"' thereof. All of the pivots may be constructed in the same manner in order to assure the insulation of that portion of each wire which does not form a part of an electrical controlling-circuit. In this case one y i substantially the manner shown and described in my prior patent, No. 649,086, granted May 8, 1900. This holder is intended to be carried by a winding-spindle,wl1ich may be substantially of the construction` shown at w, (see Fig. 8,) it having in thiscase three principal parts, one of which is designated by 55 and-is'journaled in suitable bearings at the forward left-hand side of the machine and Each of these reels should.

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head for turning and withdrawingr the same and also a spring 59, working between a bearingcheck,coperatin g therewith and the stopcollar 58. The inner end of the section 58 is preferably of pyramidal shape in order that it may hold the main section or'windingspindle proper securely, this pivot being designated by 58". In this case the section 58 is made in two parts 58a and 58h, one journaled in the other, the main portion 58a being mounted directly in a bearing in the framework, While the part 56b carries the pivot 58" and is journaled in the main portion 58a. At the opposite end thereof the section 57 may have a pair of coupling-arms 57 coperating with forked arms 55 of the driving-section of said spindle. By constructing the winding-spindle in section in this manner it will be apparent that the iinished helices may be readily removed and a new holder inserted at the end of a series of winding operations. 1

The holder h preferably has a series of slots 60 therein, through which the wires and threads are passed,the central section 57 of the winding-spindle having a longitudinal slot in one side thereof to accommodate these wires and threads, which may be drawn through the channel. 57" after the holder is in place (see Fig. 8) and passed through the opening in a binding-post 58"/ on the section 58 and held in place by the binding-screw,

i all of the wires being grounded by connect- Yss ing them with the section 58 in this manner.

The parts just described are operative for winding the conductors or'wires c and the threads t onto the holder w as the latter turns with the winding-spindle; butin order to lay the threads and wires properly suitable guiding and traversing vmechanism should be employed. In this case the section 55 of the winding-spindle has secured thereto a worm. 6l, (see Fig. 3,) which meshes with aworm-l gear 63, carried by a short shaft 62, suitably journaled in bearings and having at its rear end a pair of bevel-gears 64 and 65,the former of which meshes with a large bevel-gear 66', secured to a hub or sleeve 66,4 journaled on a shaft l67, while the gear 65 meshes with a corresponding bevel-gear67, secured to shaft 67. The ratio between the worm 6l and the worm-wheel 63 is such that the latter will turn once each time a layer of coils is Wound on the holder h, and it will be obvious that this ratio maybe varied by means of changegears or in any other desired manner. The ratio between the gears 65 and 67'is one to one, while that of the gears 64 and 66 is one to two, for the reason that the hub 66 is in tended to control the operation ofthe guiding and traversing mechanism, and in this case has therein a cam-slot 66", so shaped that during one half of a rotation it will control the Winding of one layer of coils in one direction and during'its next half rotation it will con trol the winding ofthe succeeding layer of coils in the opposite direction.

Any suitable wire and thread guiding and traversing means may be employed, but in this case I have shown a reciprocatory rod 68, supported in guide-openings at the forward ends of a pair of arms 70 and 70', forming part of a swinging frame, which will be hereinafter more particularly described. At the left-hand end thereof said rod is loosely pivoted to a lever also mou nted on said swinging frame,pref erably near the rear end thereof, the pivot of said lever being indicated herein at 7l and the lever itself being designated by 72. This lever swings in a plane that is near the horizontal and is controlled in its movement by the cam-slot 66, said lever having'thereon a cam-roll 72 (see Fig. 5,) which works in said cam-slot and has a regular traverse movement controlled thereby, said slot being properly shaped to secure this movement. The rpd 68 should have thereon a plurality of wire and thread guiding devices corresponding in nu mber to the number of helices to be Woundin this case six-and these guiding devices are designated herein, respectively, byg and should be insulated from the rod 68 in order to prevent grounding at this point. In the present case each of these Wire and thread guiding devices has a pair of guide-rolls, such as 73 74, mounted ou an angle-arm 75, awire and a thread passing over each roll 73 and under each roll 74 before being wound onto the holder h.

As before stated, the shaft 67 should make o ne rotation for each layer of wire and thread wound by the machine, and from this shaft movement may be transmitted to the swinging frame of which the arms 70 and 70' form parts, this frame being intended in the present construction to withdraw the' guiding devices gradually from the helices being wound as the diameter of the latter increases. The movement of thisl frame may be gradual and should be approximately proportionate to the increase in diameter of said helices. Said movement may be derived from the shaft 67, which in this case has thereon a pinion 80, meshing with a spur-gear 82 on a shaft 8l journaled in bearings inthe framework, and also having a pinion 83 meshing with a spur-gear 85 secured to a shaft 84, the ratio of the movement of the gear 85 to the pinion 83 being as vone to ten in the present case, it being as-l sumed here that there will be ten layers of coils wound to form each helix. In order to raise the swinging frame F gradually, and thus correspondingly elevate the guiding devices g as the winding operation proceeds, the shaft 84 carries in this case cams 84', having IIO agradual rise and cooperating with said frame F to raise the latter as the diameter of the helicesbeing won nd increases. Said frame F lnay have thereon antifriction-rolls 86 in engagement with thefaces of said cams. It should be understood, of course, that the length of this cam-face and the rise thereof lnay be Varied to permit the winding of helices of different diameters and having layers of coils which differ in number.

After each layer of alternating pairs of wire and thread coils has been wound by the machine the layer should be insulated in some suitable manner-as, for example, by wrapping a sheet of,.insulating material, such as paper, around such layer. Hence the present machine embodies mechanism for feeding insulating material to the winding mechanism in such a manner that a sheet of such material or paper will be wrapped around a layer of coils each time that such a layer is completed. The sheets of paper to be wrapped around the layers of coils may be taken from a continuous web fed from a roll, such as R, preferably supported at tne axis of movement of the fra-me F, and a continuous web may be unwound therefrom, fed toward the winding mechanism, and cut into sheets of varying lengths to be wrapped around layers of coils varying in diameter as the windingoperation progresses. The continuous web of paper may be fed from the roll R around a removable guide-roll, such as 90, supported in this case on the arms and 70' of the frame F, and from said guide-roll may be passed between a pair of feed-rolls, such as 91 and 92,

also supported for rotation in bearings in said side arms, the shaft 92 of the roller 92 having thereon in this case a pinion 92, which is 'driven from an idler-gear 93', mounted on a stud 93 and carrying an idler-pinion 93", meshing With a spur-gear 94E on a stud 91, said spur-gear 91" having secured thereto a ratchet-wheel 95, which is operated by a pawl 97, carried by a lever 96,-loosely mounted on a stud 94, and operated in turn by an eccentric-rod 98', controlled byan eccentric 98, carried by the shaft 67. The pawl 97 is intended Y to turn the ratchet-wheel varying distan ces corresponding to the diameters of the helices being wound and also corresponding to the rise of the frame F. For the purpose ot' enabling said pawl to accomplish this result it -should take an additional tooth or teeth of the ratchet-wheel after each partial rotation of the latter, and to effect this I may employ a cut-off plate, such as 100, which should be operated in such a manner as to uncover' an additional tooth or teeth aftereach operati-on of the pawl 97, and in the present case I have shown a rod 101 pivoted to said cut-olf plate and to a fixed point on the framework below the frame F. As the frame F rises the rod 101 will of course lower the cut-off edge of the cut-off plate and will permit the pawl 97 to take an extra tooth or teeth after each feed movement thereof. IIence the ratchetwheel 95 will be rotated progressi vely-increasing distances on successive operations of said pawl, and these movements of the ratchetwheel will betransmitted through the geartrain hereinbefore described to the feed-rollers 92 and 91, which will feed toward the winding-spindle w strips of paper ofsuccessively-increasing lengths, these lengths corresponding to the successively-increasing diameters of the helices.

The web of paper whichis fed forward by the rolls 91 and 92 is preferably supported on a table, such as T, carried by the frame F and moving in unison therewith, the forward edge of this paper being adjacent to the periphery of the holder h when the winding operation begins and rising gradually with said frame F as the diameter of the helices being wound increases, the object being to keep the delivery end of said table at all times at substantially the same distance from the periphery of the helix regardless of the diameter of the latter.

The feed-rollers 91 and 92 serve to determine the length of the sheet which is to be wrapped around each layer of coils, but some ,other means should be employed for feeding each sheet to the helix to be incorporated with the coils thereof. For this reason I have shown at 10,5 a delivery-roller, which is carried by the arms 106 of a rock-frame pivoted on the framework at 107 and operated from the shaft 67 by means' of a forked arm 108, carrying an antifriction-roll 10S', controlled by a'cam 109, secured to the shaft 67, a spring 110, secured to the rock-frame and to a fixed member, such as the post 112, serving to retract said frame and the roller carried thereby. As the table T, with which said delivery-roller 105 eoperates, rises gradually during the winding operation, the position of said roller should, ofcourse, change also, and hence the trunnions of said roller are supported in the present case in slots 106' at the upper ends of the rock-arms 106, springs, such as 113, being employed to maintain said delivery-roller 105 in contact with the table T as the latter rises or falls. This roller should be raised from the table during its backward stroke in order to permit the paper fed forward by the rolls 91 and 92 to pass between roller 105 and the table, and for the purpose of elevating said roller 1 have shown herein cams, such'as 114C, in position to raise said roller just before it reaches the end of its rearward stroke. (See Fig. 5.) Suitable means should also be employed for preventing rotation of said roller on its forward or working stroke, as it should feed the paper positively and not merely turn in contact therewith. For this reason I have shown at and 116 a ratchet-wheel carried by the roller and a hold-back pawl cooperating therewith for preventing rotation of said roller as the `latter moves toward the helix for feeding a sheet of insulating material or paper thereto.

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Any suitable means may be employed forV cutting oif from the continuous Web of paper sheets of the lengths indicated by the feedrolls 91 and 92. In the construction shown a knife is carried on'the forward end of a swinging frame K, the axis of which is the same as that of the frame F, said knife-frame being operated in this case by a cam 120 on the shaft 67, this 'cam preferably having a quick drop` and coperating with an antifrictionroll 121' on a forked arm or rod 121, connected with the frame K, while a suitable spring, Stich as 122, may be employed to operate the knife and sever the paper quickly. The table T may have anotch 125 therein, forming a cutting edge or shear coacting with the edge of the knifev k.

ln the present case it is not intended to wrap a sheet of paper around the last layer of coils, and hence the feeding of the paper after the last layer of coils has been wound should be prevented. shown at 130 a throw-out device in the form of a pivoted arm coperating with the heel of the pawl 97 to shift the latter out of the path of the ratchetwheel 95 at the proper moment, this arm 130 being normally heldin an inoperative position b va spring 131 and being shifted into the path of said pawl by a cam 84" upon the shaft 84 after thelast or tenth layer of coils has been wound, this cam engaging an antifric'tion-roll 130 upon the arm 130'at the end of the winding operation and holding said arm in its working position, and thus keeping the pawl 97 in an'inoperative position until the machine has been operated to bring the parts to the startingpoint of a newcycle of operations.

-The opera-tions performed by the mechanism just described are substantially similar in most respects to those performed by the mechanism shown, described, and claimed in the patent granted to James C. Anderson July.

31, 1990, No. 654,583, to which reference may be made-that is to say, several helices are wound simultaneously on a holder, preferably of cardboard by Winding a bare wire and an insulating-thread side by side in parallel coils and in successive layers of progressively-increasing diameters, thewire and the thread being laid properly by suitable Wire andthread guiding and traversing means working in opposite directions alternately, sheets of insulating material of progressively-increasing lengths being cut froma continuous web and Wrapped around successive layers of coils after such layers have been completed, the movements of the parts being so timed that each insulating-sheet willbe inserted in place and wrapped around the helices after a layer of coils has been completed and before the winding of another layer is begun, the guiding devices and the table T withdrawing gradually from the helices as the diameter of the latter increases, and thus accommodating their movements and posi- For this reason I have tions to the size of theproduct formed by the machine.

While a machine constructed in this manner is capable of winding a plurality of helices simultaneously with great precision and rapidity, it is not capable of determining when the proper amount of resista nce is contained in the windings-of each helix, and one of the principal objects of the present invention is to provide, in connection with a mechanism substantially of the type hereinbefore described, electrical controlling means for determining exactly when the 4resistance of each helix of a series being wound equals a predetermined amount. In Fig. 9 I have shown in diagram an electrical controlling system-operative for determining accurately when the proper amount of resistance is contained in each helix, and for the purpose of avoiding confusion the circuits for these electrical controlling devices are not shown in the .drawings of the mechanism.

` Before the beginning ofthe operationof the machine all of the b'arewires care preferably grounded at a given point, as hereinbefore described, the ground connection being indicated in the diagram by the conductor 135,

and contact-arms--such as 1-10, 141, 142, 143,

144, and M55- may be provided for making contact with the insulating-wire-guiding devices g, respectively Each of these contactarms is included in a circuit for determining the variable resistance of the conductor or wire wound on the holder 7L between the earth connection of conductor 13.5 and the point of lOO contact of the wire c with its wire-guiding device g. As the holder h is turned by the machine the variable resistance in circuit with the contact-arm 140 will of course increase progressively, and the amount of the resistance in circuit at any given moment may be indicated by a galvanometer connected in circuit with the coils being wound. Preferably this galvanometer will be included in the bridge-circuit of an electric bridge for determining when the variable resistance of the wire being wound balances a iixed resistance also contained in such bridge-circuit. In this case thesey helices are intended to be wound simultaneously by the machine, and there should be six circuits for determining the resistance of each helix separately, each of these circuits including an electric bridge with one or more fixed resistances and also a galvanometer included therein and preferably a source of current or battery for each individual helix. These electrical controlling devices may be mounted in any suitable manner on the framework and may be inclosed advantageously in a box or casing, such as C, supported on bed A between the roll R and the arms B, the batteries being contained in this case in the lowermost compartment of said box or casing, which is divided, preferably, into three main compartments disposed one above another, the ceutral compartment being divided into two smaller ones by a vertical partition, such as 146. The fixed resistances of the Wheatstone vbridges may be secured to this partition and the galvanometers placed in the npper compartment of said casing, Whileacommutator, such as d, may be supported in the central compartment opposite that containtaining said fixed resistances. This commutator, though not absolutely essential to the proper operation of the controlling system, is preferably employed for the purpose of assu ring the proper operation of the galvanometers, and for the purpose of simplifying the diagram I have shown in Fig..9 the connections for sending current through the galvanometers inone direction only. The galvanometers shown are designated, respectively, by 150, 151, 152, 153, 154:, and 155 and -the several sets of fixed resistances by 160, 160, 160, 161, 161', 161", 162, 162', 162, 163, 163', 163",161,16t,1t1",165, 165', and 165. sets of contacts which coperate with the commutator-contacts for reversing the currents through the galvanometers are designated by.170, 170', 171, 171', 172, 172', 173, 173', 174, 174;', 175, and 175, while the battery-contacts are designated by 176, 177, 178, 179,180, 181, and 182,l the first ofthese being grounded through conductor 183. The sets of contacts 170 and 170', Snc., coperate, respectively, `with coinmutator contacts or segments 190,191, 192, 193,191, and 195,While the battery-contacts 176, the., coperate with a long commutator contact or segment 196.

I prefer to employ a separate battery for each` circuit that includes a galvanometer, and` these batteries are indicated, respectively, by 200, 201,202, 203, 204,and 205. In this diagram all the variable -resistances-that is to say,`

the several helices wound by the machineare connected in parallel in an electric circuit, one side of which is represented by the conductor 135and the other by a common return-conductor 136, to which all of the xed resistances 160, 161, dac., are connected, this return-conductor 136 being in turn connectedvto earth by conductor 136. Each of the helices being Wound is therefore in a separate parallel branch of one main circuit, although it is not essential that the parts be connected in this manner. Each of these branches constitutes a separate controllingcircuit for determining the resistance of the helix contained therein and each circuit containing such a helix also includes an electric bridge constructed and connected in a Wellknown manner and preferably serving to indicate When the resistance of the helixhas reached the desired point by balancing the resistances of the bridge-circuit. Hence When` the pointer of the galvanometer reaches zero the helix being wound up Will have the desired resistance and the Winding operation should be stopped instantly. In this case the circuit for determining the resistance of the first conductor or helix cis as follows: From The contact-arm 140' a 'conductor 140' passes to the resistance-coil 160, which is connected by means of a conductor210 with the resistance coil 160'. A conductor 211, connected with conductor 210,leads to one terminal of the battery 200, and from the other terminal a conductor 212 passes to the contact 177, the circuit being completed through commutator-segment 196, contact 176, return-conductor 183, the earth, return-conductor 135, and the coils Wound, it being understood, of course, that the current Hows in a direction opposite that just followed in tracing such circuit. At the point 210' the current divides andthe other branch of the circuit follows the conductor 210 to the resistance-coil 1GO', which is connected by a conductor 214 to the conductor 136, the current passing to earth through the resistancecoil 160" and the return-Wire 136' and flowing through the conductor 183, contact 176, commu tator-segment 196, contact 177, conductor 212, and battery 200 back to the point 210. The galvanometer 150 is included in a conductor 215, which is connected with the resistance-coil 160 and with the contactar-m 170, this branch of the bridge-circuit being completed through commutator-contact 190, contact-arm 170', and a conductor 216, connected to the return-conductor136 at the same point as the conductor 21-1.. Vhen the resistance in that branch of the bridge-circuit which contains the variable resistance or helix c equals that of the other branch containing the fixedresistances 160' and 160", it Will be evident that no current l'OO Will flow through the galvanometer 150, and i hence the galvanometer-needle Will stand at zero. As the circuit-s for the other galvanometers and helices are snbstantiallysimilar t0 that just described, a particular description of each of them is deemed unnecessary. l

Whenever the resistance of any helix reaches a predetermined point, this shouldber indicated at once and the operation of the machine stopped until the feed-wire (and also the insulating-thread ,When this is used) is cut, and I have illustrated herein a translating device governed by its controlling-circuit and operative for accomplishing this result. This translating device may be ofany suitable type governed eitherdirectlyor indi rectlyby the resistance of such controlling-circuit,bnt is preferabl y a spark-relay which controls a local circuit in the manner hereinbefore described, (and also in my companion application,herein before referred to)-that is to say, it is a de-v at the moment that the needle of the galva- IOS IIO

IIS

ltainv mechanically.

nometer reaches a determined position, preferably the Zero-point, at which the needle indicates that the resistances of the bridgecircuit are'balanced, the electric bridge containing the galvanometer 150 being designated herein in a general way by V. In controlling a local circuit by means of a galvanometer a very sensitive action results and one which it is practically impossible to ob- Moreover, the control of the local circuit by the galvanometer is purely electrical and is much more sensitive and certain than it would be Were such local circuit made by mechanical contact of the galvanometer-arm with a circuit-terminal. Six of these spark-relays are shown in the present case, one for each galvanometer, and the manner in which they are constructed is clearly'shown in detail in Figs. 11 and 12. In these views, tand t' indicate, respectively,

the terminals of the local circuit and may be strips of copper or other suitable 'conducting material. Preferably these terminals will be separated not only by an airgap lor sparkgap of suitable length, but also by non-conducting material, which will usually be in sheet form, preferably a sheet or sheets of mica, as indicated at i. The two terminals t and t' and the insulation i may be assembled and inserted in that form in a slot in a block of insulating material, such as I, supported on a base-board I', the terminals and the mica being held in place in any suitable manner-as, forexample, by means of a pair of screws 220 and 220', passed through the block I and binding against the sides of the terminals t and t'. These screws may be used as binding-screws for conductors, such as 221 and 221', the ends of which may be looped around the shanks of the screws in the usual manner, these conductors forming in this case part of a local circuit, which will be closed by the main or controlling circuit in a manner similar to the closing of a local circuit by an ordinary relay governed by a main line or controlling-circuit, except that the conducting-path between the terminals t and t' will be formed by the gases and metallic vapors or particles between such terminals. Preferably the insulating material or mica 'L' will extend slightly beyond the ends of the conducting-terminals tand t' in order to assure the perfect separation and insulation of such terminals. The closing of the circuit between the terminals t and t Will be governed by a suitable local circuitcontroller, which may be carried by and insulated from the galvanometer-needle, this controller being preferably of the construction shown herein at t", having for its center or pivot the pivot of the galvanometer-needle, and being therefore very sensitively poised and very light. Hence it has but slight inertia to retard its movement when a current passes through the coils of the galvanometer, and it will be responsive to such flow of currentand will be deiiected in eX- actly the same manner as the needle n of the galvanometer. This terminal t" may be of any suitable conducting material, such as copper, and will preferably be forked from a strip or contact-arm forked at its contact end to form a substantially U-shaped member, the two arms or points of which will be spaced at aninterval approximately equal to that between the ends of the terminals t and t. Hence when said contact t" swings to the position shown in Figs. 11 and 12 it will not engage the separated terminals of the local circuit, but Will lie adjacent thereto and will be so close to said `terminals that the length of the air-gap or spark-gap separating them will be .reluced to such an extent that the current in the local circuit Will jumpthe gap and form a spark connection which Will com- .plete the local circuit, the heated particles of the gas or air at the gap and the metallic particles or vapor separated from the terminals by sparking serving to maintain the circuit until the arm t" is Withdrawn to a point where the resistance of the spark-gap will be so great that the current in the local circuit Will no longer be able to rupture the same and produce a disruptive discharge between the local-circuit terminals. The contact-arm t" may be insulated from the needle n in any suitable manner, preferably by a small strip of mica, such as t', to which the ends of the needle and the contact-arm, respectively, may be riveted near the opposite ends of the mica strip.

The local circuit controlled by the device just described W'ill preferably be a high-tension one capable of producing and maintaining a spark of considerable length between the terminals t and t', and in my present machine it controls the operation of a stop device or brake for instantaneously stopping the rotation of the Winding-spindle w When a spark is formed between such local-circuit terminals. Six of these relays are represented in Fig. 9, the conductors leading from the local-circuit terminals being designated, respectively, by 221, 221', 222, 222', 223, 223', 224,224@ 225, 225', 226, and 226', said conductors being connected in parallel in a single circuit, including in this case the secondary Winding of a lstep-up transformer T', the primary of which may be connected to the line-Wires 230 and 230 of an ordinary incandescent-light circuit deriving current from a dynamo, as shown at D. In this controlling system the several conductors 221', 222', 223', 224', 225', land 226' are connected to a common conductor 231, which in turn is connected to a conductor 232, leading to the secondary of the transformer, while conductors 221, 222, 223, 224, 225, and 226, may be connected to corresponding terminals of a series of indicators, such as 240, 241, 242, 243, 244, and 245, one for each helix, the opposite terminals of said indicators all being connected in this case to a conductor 232', connected to the opposite side of the secondary IOO IIO

Vio

244', and 245.

stantly stopping the machine.

l(See Fig. 3.) This annunciator serves to indicate at once to the operator which one of the helices is completed, and in the present system it also controls the operation ot the device for stopping the winding-spindle.

'Each of the indicators just described has Vas-` sociated therewith a circuit-controller orj switch-arm, these switch-arms being designated, respectively, by 240', 241', 242', 2443',

'connected a conductor 252, including a translating device or solenoid e, connected in this case to the latch 16 and controlling the release thereof. p A plurality of contact-terminals (designated, respectively, by 260, 261, 262, 263, 264, and 265) are associated with the respective switch-arms 240', dac. and are con-` sleeve 8 and Wedge the conical portion 8 thereof in the tapered opening 14', thus in- As the making of the first local circuit, including the annunciator, and also the making of the second'local circuit controlled by such annunciator are governed by the spark-relay, and as this primary controlling device or relay is not dependent upon mechanical movement for its proper operation, but is wholly dependent upon the resistance of air-gap between the local-circuit controller t" and the associated local-circuit terminals t and t', it will be evident that my improved controlling system is especially adapted for use in connection with such a machine as hereinbefore described, in which it is of the utmost' importance to stop the operation of the wirecoilingmeansinstantaneonsly whenany'helix contains the desired resistance, audthat fact has been indicated by the device or circuit which controls the same. Of course after one helix has been finished in this manner and the machine automatically stopped by the operation of the devices described the machine may be started again after the Wire These switch-arms are all` connected to a common conductor 250, lead-l `ing to one terminal of a source of energy or'` battery 251, to the other terminal ot' which isy "the machine is not in operation. This short circuit includes a conductor 270, connected to the conductor 140' and leading to a contact-arm 271', while another contact-arm 271 is connected by means of a conductor 272 with the conductor 215 at the opposite side of the galvanometer 150. When the commutator d is turned to the proper point, the contact-arms 271 and 271 will engage the co'mmutator-contact 190, close the short circuit around the galvanometer, and thus preventswinging of the galvanometer-needle.

Having described my invention, I claim- 1. The combination, in an electrical system, with an electric circuit including a me ter, of means for automatically varying the electrical quantity measured by said meter, and an electrically -controlled devicegoverned by such variation and operative at a predetermined point for automatically controlling an element of the system.

2. The combination,with an electric circuit including a meter, ofmeans -for varying the electrical quantity measured by said meter,

and anv electrically-controlled 'device governed by such variation and operative at a predetermined point and also controlling such variation. y

3. The combination, with an electric circuit including a meter, of means for varying vthe electrical quantity measured by said meter, and an electricallycontrolled device governed by such variation and also operative for automatically stopping such variation at a predetermined point.

4. The combination, withan electric circuit havinT a variable resistance therein of means IOO IIO

said resistance, and a device controlled by said galvanometer for stopping such variation at a predetermined point.

6. The combination, with an electric circuittion at a predetermined point.

7.4 The combination, with an electric circuit having a variable resistance therein and also including an electric bridge having in the bridge-circuit a galvanometer for determining said variable resistance, of means for varyin g said variable resistance, and a device controlled by said galvanometer and automatically operative for stopping said variation on the balancing of the resistances of the bridge-circuit.

8. p The combination, With an electric circuit ,having a variable resistance therein, of means untilthe resistances of the bridge-circuit are balancedfand a device controlled by said galvanometer and automatically operative for stopping such variation on the balancing of said resistances; Y

10. The combination,inan electrical system, with wire-coiling means, of. an electric circuit including the coils wound by such Wire-coiling means, and an electrically-controlleddevice responsive to a predetermined resistance in said circuit and operative for automatically controlling'an element of such system when such predetermined resistance is reached.

\ 41l. The combination, with wire jcoiling means, of an electric circuit including the coils wound by such Wire-coiling means, and

anV electrically-controlled stop device respon-` sive to a predetermined resistance in said circuit. l i

12. The combination, with wire coiling means, of an electric circuit includingthe coils woundby such wire-coiling means, 'and' asto'p device vgoverned by the resistance of such coils and operative for stopping the operation of the wire-'coiling me'ansat a prede-Z termined point.

13. The combination, 'Witli Wire -k-coili-ng Y means, of an electriccircuit including an electi'ic bridge having in the bridge-circuit the coils wound by such Wire-coiling means'and a translating device responsive to a 'predeter-- mined resistance inthe bridge-cir'cui-t` 14. The combination, with Wire coiling means, of an electric'ci rcuit including an electric bridge having in the bridge-circuitthe coils .wound by said Wireacoiling means, and

a `stop device governed z'by the balancing of the resistances of the bridge-circuit and operative forstopping the operation of the wirecoiling means. y

15. The combination, with wire-coiling and coil-insulating means, of an electric circuit including the coils Wound bysaid Wirecoil ing means, and a stop device governed bythe resistance of such coils and operative for stopping the operation o'f the wire-coiling means at a predetermined point.

16. The combination, with mechanism forY winding a barewire and an insulating-thread side by side in parallel coils, of Van electric kcircuit including the wire coils Wound by said mechanism, and a stop device governed by the resistance of such wire coils'and operative for stopping the operation of the coiling mech"- anism at a predetermined point.

17. The combination, with mechanism for winding a bare wire and an insulating-thread sideV by side in parallel coils and with sheetdelivering mechanism for wrapping a sheet of insulating material around each layer of coils, of an electric circuit including the wire coils wound by .said mechanism, and a stop device governed by the resistance of such ivire coils and operative for stopping the operationr of the coiling mechanism at a predetermined point.

18. The combination, with mechanism for Winding a bare wire and an insulating-thread side by side in parallel coils, said mechanism embodying a reciprocatory Wire and thread guide, of an electric circuit including the Wire coils wound by said mechanism, and a stop device governed by the` resistance of such wire coils and operative for stopping the operation of the coiling 'mechanismat a predetermined point. I Y

19. The combination, with mechanism for winding a bare Wreand an insulating-thread side by side in parallel coils, said mechanism embodying aireciprocatory wire and thread guide, of web feeding and cutting sheet-de-a livering mechanism for feeding a web of insulating ma'tfer-iaLcutting it into sheets, and wrapping said sheets around the layers of coils; an electriccircuit including the Wire coils wound by such coiling mechanism; and a stop device governed by the resistance of 'such wire coils and operative for stopping the operation of the coiling mechanism at a predetermined point. j

20. The combination, with wire coiling means, of guiding and traversing means; web feeding and cutting sheet-'deliverin g mechanism having differentl feeds-for feeding a web of insulating-material dilfe'rent distances, cu tting it into sheets of different lengths, and

`wrapping'sa'id sheetsa'round thelayers of .-coils; an electric circuit including the coils Wound by said wirecoiling means; and a translating device responsive to a predetermined resistance of said circuit..

21. The combination, with vWire coiling means, of guiding and traversing means; web feeding and cuttingsheet-delivering mechanf ismjliaving progressively-iucl-easing feeds for feeding a web'of insulating material progressively-increasing distances, cutting it into sheets of progressively-increasing lengths and Wrapping said sheets around the layers of coils; anv electric circuit including the coils Wound by said Wire-coiling means; and a stop device governed by the resistance of such Wire coils and operative at a predetermined point.

IIO

22.l The combination, with a mainlcircuit having 'a variable resistance therein, of means for varying said resistance; a local circuit having a pair of terminals separated by a Vspark-gap; means controlled by the resistcri one o! tbe moin circuit lor producing a disrnptlve disc :ndcterniin int; and a device couled by the clou n; of the local circuit for automatically stopping the variation of the resistance of nid moin circuit.

83. The combination, with wireceiling menno, o! o moin circuit including ythe colle circuit hnviuguI pair of terminale `seperated by n spark-gar; menue controlled by the re- :o :latence of d colla for producing n disruptive discharge between enid terminals nte predetermined point; and o translating device in enid local circuit.

25. The combination, with wire coilin z5 menno, o! n umin circuit including the colle .o

wound b said wire-ceiling means; at local circuit bev ng n pair of terminals seperated by n eparlbgap; means controlled by theresisb ance et seid coils for producing u disruptive 3o diecberge between said terminala et n predetcrruiued point; and o stop device controlled by thc closing e! the local circuit for automaticnlly ctopping the operation ot the wirefeoiling means. i 26. The combination, with c plurality of electric circuits euch having n variable resistance therein, o! menne for varying the resistonce of eochoi said circuito, enden automatic stop device governed automatically sud se- 4o lectlvcly by euch of said circuits and operetlve for aulomnticallystopping auch variation when the lesietnnce of any circuit reaches e. predetermined point. 'j 27. The combination, with multiple wireceiling means, of c plurality of electric circuite each including one eet of collo wound by noch wire-ceiling menne, und en automatic sto device governed by each ci seid circuits un operative for stopping the operution of 5o unid wire-coiliug means when t e resistance of enyeircit renc-hec c predetermined point.

28. The combination, with multi le inenlated-wire-snppylng means, of mn tiple ineulntedwirogniding menne; multiple wireceiling menne; u plurality ol electric circuits each including one oi the wir-@guides und one cet ol coils wound by scid wire-coiling menne; und nu automatic atop device governed by euch of said circuits und operative ce for stopping the operation ct said vedrei-coilu ing menne when the resistance of uny circuit reaches s prodetermined point.

29. The comblneiiomwltb multiple insu inted-wire-oupplyiug ineens, of multiple Wireguiding menus embodying u plurality of in eulnted guidorolle; multiple wire ceiling menne; c plurality of electric circuito euch between leid terininnlsat including one of the guide-rolls and one oet o! coils wound by laid wire-ceiling menno; and nn automatic stop de vice governed by 7o each o! said circuits and o rntive for stop ping the operation of said w re-coiliug Ineens when the resistance of any circuit reaches n predetermined point.

30. The combination, with multiple innu- 15 luted-.wlwsnpplying means, of mn tiple inminted-wire guiding and truversing menne; multiple wire-eoiling menne; n plurality ci electric circuits each including one of tbc wire-guides and oneeet of coils wound by said 8o wire-coiiing means; und sin automatic stop device governed by each of seid circuits nud operative for stopping the operation of laid wire-ceiling means when the recistnucc of uny' `circuit ranches n predetermined point. 85

31. The combination, with wire ceiling means, of an electric circuit including the. coils wound by such ,wire-coiling menne, and en annuncintor controlled by unifi circuit and responsive to a predetermined resistance 9o therein.

32. Tile combination, with wire-c0iling menus, of au 'electric circuit including the coils wound by such wire-ceiling menne, und an annnnciutor nud n etop device .both eontrolled by sold circuit und responsive ton predetermined reslstance therein und the latter operative for stopping the operation of said `wire-ceiling means.

o 33. The combination, with wire ceiling me means, Aof on electric circuit including the coile wound by auch wil-@coding menus; un annnnoiator controlled by said circuit und reeponeive to o predetermined resistance therein; und u translating device controlled by :o5 euid nnuncintor.

. 3l. The combination, `with wire ceiling menus, oi nu electric circuit including the coils Wound by euch wirecoiling means; ein nnnuncinto'r controlled by seid circuit und rer zo spousive to a predetermined resistance therein; nud e cto device controlled by said nu* nnnciutor on loperutive for stopping the op eroi-ion of saidwire-coiliuiz menno.

35. Tile combination, yrith multi le wlro- U5 culling menne, of n plurality of el cti-lc eircults each inclndiugonc eet ci colle wound by auch wire-ceiling menno, und u. plurality oi nnnuncintor controlled respectively by unid circuito und ouch roepcnclreic n rcdctcn rre mined resistance in its respective c ruuit.` l

36. The combination with multiplo wircceiling carene, of u plurality of electric clrculto eoohincludiug cnenetol collo wound by such wircooiiioig moons; n plurality oi' unl m5 nunoiutore controlled respectively by uuid circuito und euch responsive to u predator 'mined maintenue in itu respectivo ci recit; und n trunsiutiug device controlled by, und cow mon to, ull of unid nnnouciutoru.

37. The combination, with nu electric circult, of n plurality of vnrlnbie rooietuucneoon :looted lu purullei in uuid circuit;` menno for varying noch of @cid reuiotoncon; und un uw 6o ity-ot circuitcontrollers governed if ,ii-@Milind tcmatic stop device governed by each of said l and operative for stopping the variation of variable reeistancee and operative for nutol the resistance of auch controlling-circuit.

:natically stopping anch variation when any resistance reaches a predetermined point.

3S. The combination, with a plurality of controllingoircnits each having a variable reeietance therein, of means for varying the resistance ot each oi said circuits; a local circuit inclndinga plurality of parallel branches ro each having a normally open break; a plurality of circuit-controllers governed respectively by said controlling-circuits and oon trolling said breaks respectively, and each operative for closing its respective b realc i r 5 when the resistance of its controlling-circuit reaches a predetermined point; anda stop device controlled by said local ein-snit and op' erative tor stopping the variation of the resistance of its oontroiling-circuin :o 39. The combination, with a plurality of controllingeirouits each having a variable resistance therein, ot means for varying the re eletance o! each o! said circuits; a normally open local circuit; a lurality oi! parallel-con- :5 nected pairs of circo t-terminals iu said local circuit, the terminals of each pair being separated b a spark-gap; a plurality ot circuitcontroi era associated respectively with said seta of local-circuit terminals and governed res tively by seid controlling-circuits and eac operative for producing adisruptivedis charge between its associated local-circuit terminals when the resistance of its controllin -olrcuit reaches a predetermined point;

an a atop device controlled by said local circuit and operative for stopping the variation of the resistance of its controlling-circuit.

40. The combination, with n plurality of controlling-circuits each having a variable re- 4o sietance therein, of means for varying thereeintauce ofeach o! said circuits; a local circuit includinga plurality of parallel branches each having a normali open break; indicators in said branch c rcnits; a plurality of circuit-controllers governed respectively by eaid controlling-circuits and controlling said brealra respectively and each operative for closing ita respective break when the resist ance o! ite controlling-circuit reaches e pre- 5o determined point; and a sto device controlled by said local circuit an operative `for stopping the variation of thereslstance o! ite i controllingoirenit.

4l. The combination, with a plurality o! 5 5 controlling-circuits each having a variable resiatanee thereiinof means for varying the resistance of each of said circuits; a local cir cuitineludlnga plurality of parallel branches each having a normally open break; e pluralreepectively hy said controlling-circuits und controlling laid breaks respectively and each operative'for closing its respective break when the resistance of itecontroliincircuit reaches apndetermined point; a second local circuit controlled by said branch circuits; and a sto device controlled by said second local cirou t 42. The combination, with a plurality o! l controlling-circuits each llavinga variable resistance therein, of means for varying the reeietance ci each of said circuits; a loeal'circnitinclnding a plurality of parallel branches each having a normally open breek; indicators in said branch circuits; a plurality o! circuit-controllers governed respectively by said controlling-circuits und controlling said breaks respectively and. each operative for closing ite respective break when the resistance of its controlling-circuit reaches a predetermined point; a second local circuit contrcllediby said indicators; and a atop device cntrclled by said second. local circuit and o rntive for stopping the variation of the res stance o! such controlling-circuit.

443. The combination, with wire ceiling means` of an electric circuit including the coils wound by such wire-coiiing means; a brake for seid .vire-coiling means; and a brake-operating device governed by the re eistance of euch wire coils and operative when said reaietancereachesapredetermined point.

44. The combination, with a driving member, of wire-coiling means normally coupled to snid driving member; an. electric circuit including the coils wound by such wire'coih ing means; and an uncoupling device controllingsaid wire-ceiling means and governed b'y the resistance of auch wire colis and operative when such resistance reaches a predetermined point.

45. The combination, with a driving memben of wire-ceiling means normally coupled to said driving member; an electric circuit including the coils wound by such wire-coiling means; and n combined nncoupling de vice and brake controlling said wire-coiling means and governed by the resistance oi such wire coils and operative when auch resistance reaches a predetermined point.

46. The combination, with `:vire -coiiing means, of a controlling-circuit including the coils wound by such wire-ceiling means; a local circuit; a local-circuit controller goverued by said controllin -circuit and effective when the resistance o! t e controlling-circuit reaches a predetermined point; and a device controlled by said local circuit tor stopping the operation oi the wirecolling means.

'47. The combination, with a main circuit havingavnriable resistance therein, of means for varying suini resistance; a local circuit having a pair of terminals separated by a spark-gn means controlled by the resist ance oi t e main circuit for producing a disruptive discharge between said terminals at a predeterminedpcint', aliue-circuit; a transformer, the rimary winding of which ie included in sa d linc-cirouit and the secondary of which is included in said local circuit; and a device controlled by the closing of the local circuit for stopping the variation of the rcsistance oi said main circuit.

48. The combination, with Wire coiling means, of a controlling-circuit including the coils Wound by such wire-coiling means; a local circuit having a pair of terminals separated by a spark-gap; means controlled by' the resistance of the main circuit for producing a disruptive discharge `between said terminals at a predetermined point; a line-circuit; a transformer, the primary Winding of which is included in said line-circuit, and the secondary of which is included in said local circuit; and a translating device controlled by said local circuit.

49. The combination, With Wire coiling means, of a controlling-circuit including an electric bridge having in the bridge-circuit the coils Wound by such Wire-coiling means; a local circuit having a pair of terminals separated by a spark-gap; means controlled by the resistance of the bridge-circuit for producing a disruptive discharge between said terminals at a predeterminedpoint; and a translating device controlled -by said local circuit.

50. The combination, with' Wire-coiling means, of a controlling-circuit including an electric bridge having in the bridgecircuit the coils Wound by such wire-coiling means; a local circuit having a pair of terminals separated by a spark-gap; means controlled by the resistance of the bridge-circuit for producing a disruptive discharge between said terminals at apredetermined point; a linecircuit; a transformer, the primary winding of which is included in said line-circuit, and the secondary of which is included in said local circuit; and a translating device controlled by said local circuit.

5l. The combination, with an electric circuit having therein a variable resistance and a rolling contact in traveling engagement With each other, of a translating device responsive to a predetermined resistance in said circuit.

52. The combination, With a main circuit having therein a variable resistance and a cuit for producing a disruptive discharge between said terminals at a predetermined point; and a translating device"controlled by said local circuit.

53. The combination, with Wire coiling means, of an electric circuit including therein the Wire Wo und by such Wire-coiling means, and also a rolling contact in engagement with such Wire, and a translating device responsive to a predetermined resistance in said circuit. 4 v

51. The combination, With Wire coiling means, of an electric circuit including therein the Wire Wound by such Wire-coiling means, and also a contact in traveling engagement With each other, and a translating `device responsive to a predetermined resistance between said contact and the opposite end of such wire coils.

55. The combination, with Wire coiling means, of an electric circuit including the coils wound by such Wire-coiling means, and also including a galvanometer for determining the resistance of such coils; and a short circuit for said galvanometer.

56. The combination, With Wire coiling means, of an electric circuit including the coils Wound by such Wire-coiling means, and also including an electric bridge having in the bridge-circuit a galvanometer for determining the resistance of such coils; and a short circuit for said galvanometer.

RICHARD VARLEY, JR.

Witnesses:

ALEX. LIVINGSTON, Jr., WILLETT CHADWICK. 

